- Mercury (planet) - Wikipedia
Mercury is a classical planet that has been observed throughout history and recognized as a planet (or wandering star) In English, it is named after the ancient Roman god Mercurius (Mercury), god of commerce and communication, and the messenger of the gods
- Mercury - Science@NASA
Mercury is the smallest planet in our solar system and the nearest to the Sun Mercury is only slightly larger than Earth's Moon It's the fastest planet, zipping around the Sun every 88 Earth days
- Mercury | Facts, Color, Size, Symbol | Britannica
Mercury is the smallest major planet in both size and mass Why is it difficult to observe Mercury? Mercury is the smallest planet in the solar system, and it is also the planet closest to the Sun, making it the most difficult of the planets to see with the unaided eye
- All About Mercury | NASA Space Place – NASA Science for Kids
Mercury is the smallest planet in our solar system It’s just a little bigger than Earth’s Moon Mercury itself, though, doesn’t have any moons It is the closest planet to the Sun, but it’s actually not the hottest Venus is hotter Along with Venus, Earth, and Mars, Mercury is one of the rocky planets
- Planet Mercury, explained | National Geographic
Named for the fleet-footed Roman messenger god, Mercury is the closest planet to the sun, zipping around our parent star at an average of 36 million miles away However, Mercury’s orbit is not
- Mercury Facts | Mercury Size | Mercury Planet Color | How Big Is . . .
Mercury is the smallest planet in the Solar System in both mass and diameter It’s 18 times less massive than the Earth, and its diameter barely reaches two-fifths of the Earth’s size To give you a better understanding of Mercury’s size, let’s say that it’s only a third larger than the Moon
- Mercury, world of extremes | The Planetary Society
Mercury is the smallest planet in the Solar System and the closest one to the Sun It's also a little-explored world, full of mystery, with a surface split into extremes and an interior that puzzles scientists Mercury is only slightly larger than Earth’s Moon
- Mercury Fact Sheet - NSSDCA
Surface pressure: <~5 x 10-15 bar (0 005 picobar) Average temperature: 440 K (167 C) (590-725 K, sunward side) Total mass of atmosphere: <~10000 kg Atmospheric composition (Column abundances in 10 6 per cm 2): Sodium 12,000-200,000; Magnesium 100,000; Oxygen <40,000; Hydrogen 5000, Potassium 800-1300, Calcium 300-1000; Iron <300; Aluminum 15
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